Hi Oscar,
I am not sure why your piston was not moving, but it seemed that what you would like to do can be achieved with "fix wall/reflect" command. You might want to check that out.
Best,
Ray
You can also look at the commands in the SHOCK package, like fix wall/piston.
Steve
Hi Steve and Ray,
Im sure the piston is moving (since the computation box changed its
length) , I changed the boundady conditions to periodic in all
directions i.e p p p and then created a movie (please find it
attached) . The "piston" moves in the z-direction. I'm not sure what
would be the best boundary condition (periodic or shrink-wrapped ? )
if i use Shrink-wrapped along the diretion of the shock , then the
piston remains static , but the box readjust ....
Can you give me an advise in which boundary condition i should use ?
ps: Thanks alot for replying and your valuable suggestions ....
Oscar G.
.
shock.wmv (165 KB)
Hi Steve and Ray,
Please bear with me , I am trying to use wall/piston it will take me
some time to implement the script (~2 days). I will post the results
of my runs ....
Thank you ....
I don't think you want periodic boundaries when you
have a wall, either an ideal one or one made of atoms
like your piston.
Steve